250-2000TPD Towline Extraction Process

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Solvent Extractor not only a main part of the solvent extraction system,but also the important part of the whole oil production line.The three main type s extractors are Rotocel Extractor;Towline Extractor.Loop Type Extractor. 

I  Rotocel Extractor

Features of  Rotocel Extractor:

1. Adopt stainless steel fixed grid plate and increase the horizontal grid plates, which can prevent the strong miscella 

from flowing back to the blanking case, so as to ensure good extraction effect;

2.The rotocel extractor is driven by rack, with unique rotor of balanced design, low rotating speed, low power, smooth

operation, no noise and quite low maintenance cost;

3.The feeding system can adjust the rotating speed of airlock and main engine according to the feeding quantity and

maintain a certain material level, which is beneficial to the micro negative pressure inside the extractor and reduce 

the solvent leakage. 

4.The advanced miscella circulation process is designed to reduce the fresh solvent inputs, reduce the residual oil in

meal, improve the miscella concentration and save energy by reducing the evaporation capacity. 

5.The high material layer of the extractor helps to form immersion extraction, reduce the meal quality in miscella, 

improve the quality of crude oil and reduce the evaporation system scaling. 

6.Specially suitable for the extraction of various pre-pressed meals. 

II Towline Extractor  

Features of  Towline Extractor : 

1) The material is divided into several independent units on the material bed, which can effectively prevent miscella at 

all levels from fleeing hither and thither on the material layer and ensure the concentration gradient between several sprays. 

2) Immersion area appears in each lattice, which can help achieve better immersion effect.

3) The chain box is supported by track and can prolong the service life of screen deck by not touching it.  

4) The towline extractor is driven by world leading double-shaft hydraulic motor, with balance force, reliable operation and less maintenance cost.

5) Specialty suitable for the extraction of high oil and high power materials, and better immersion effect can be expected for ordinary oil plants.   

III Loop Type Extractor 

Features of loop type extractor:

1. Loop type extractor takes chain gearing, is of low speed, stable running and low noise.The feeding system can automatically adjust the running speed of main motor according to different material, makes the storage tank keeps certain volume of material stablely, which helps producing negative pressure in the extractor so as to prevent leakage of solvent.

2.The advanced miscella circulation helps to reduce the usage amount of solvent, decrease the residual oil content in meal, and improve the concentration of miscella, and lower the evaporating amount to achieve the purpose of energy saving.
3.The designed material layers are lower of the extractor, is main of percolation leaching. There is a rotation of material at bending sections, which helps to reduce leaching blind angle, but that makes meal power contains in miscella much higher, need take some effective action before get into evaporating system.